CVE-2022-45553Public exploit

Root command execution via unprotected UART console

Published Mar 3, 2023 · Updated Jul 9, 2026

Improper access control in Shenzhen Zhibotong Electronics WBT WE1626 Router 21.06.18 allows physically proximate attackers to gain a root shell. The exposed TX, RX, and GND pins accept a 115200-baud serial connection and present a root command shell when the router powers on. Physical access and a UART serial adapter are required; the shell runs with UID and GID 0 and permits arbitrary commands and sensitive-file access.

CVSS severity9.8
Critical
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Shenzhen Zhibotong Electronics WBT WE1626 Router 21.06.18 allows physically proximate attackers to gain a root shell. The exposed TX, RX, and GND pins accept a 115200-baud serial connection and present a root command shell when the router powers on. Physical access and a UART serial adapter are required; the shell runs with UID and GID 0 and permits arbitrary commands and sensitive-file access.

The record

CVE
CVE-2022-45553
Published
Mar 3, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1059.004
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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